I would also recommend the fighting purr and some hard cutting toupset the hens. Also learn if you canfigure out apattern the hens are making. Which way do they head after they fly down? Sometimes I have to find their pattern and set up on their trail. I've take some big tough toms this way and have never made a call. If they fly down and head for a field, try to sneak in early and set up in between the field and the roost.